Professional Services Companies in Michigan: 64 Verified Firms
Secwyn has verified 64 professional services companies based in Michigan. The largest groups are Temporary Help Services (28); Engineering Services (14); and Employment Placement Agencies (9). By headcount, 70% have 51–200 employees, 21% have 201–500 employees, and 10% fall in other size bands. Size is not yet confirmed for 1. Troy has the most (7), followed by Grand Rapids (5) and Livonia (5). Of the 22 whose customers we could confirm, 95% sell to businesses and 0% to consumers.
Company size
- 51–200 employees44 · 69%
- 201–500 employees13 · 20%
- 501–1,000 employees6 · 9%
- Size not confirmed1 · 2%
Who they sell to, among the 22 companies where we could confirm it: businesses 95%, consumers 0%, government 27%. A company can sell to more than one.
Top cities
- Troy7 · 11%
- Grand Rapids5 · 8%
- Livonia5 · 8%
- Southfield4 · 6%
- Plymouth3 · 5%
Cities with fewer than 3 companies are not listed.
Largest sub-industries
| Sub-industry | NAICS | Companies |
|---|---|---|
| Temporary Help Services | 561320 | 28 |
| Engineering Services | 541330 | 14 |
| Employment Placement Agencies | 561311 | 9 |
| Architectural Services | 541310 | 5 |
| Landscaping Services | 561730 | 5 |
| Hazardous Waste Treatment and Disposal | 562211 | 1 |
| Janitorial Services | 561720 | 1 |
| Other Services to Buildings and Dwellings | 561790 | 1 |
A sample of these companies
A few of the 64 professional services companies in Michigan. Names, websites and contacts are shown after you sign up.
Company #1 · name shown after sign-up
Temporary Help Services · 51–200 employees
Company #2 · name shown after sign-up
Architectural Services · 51–200 employees
Company #3 · name shown after sign-up
Hazardous Waste Treatment and Disposal · 51–200 employees
Company #4 · name shown after sign-up
Engineering Services · 51–200 employees
Company #5 · name shown after sign-up
Landscaping Services · 51–200 employees
Company #6 · name shown after sign-up
Employment Placement Agencies · 51–200 employees · Southfield
Find the Michigan professional services companies that fit what you sell
Describe what you sell and Secwyn shows the companies most likely to buy it, with the reasons for each match. Sign up free and your first 3 company reveals are on us: name, website, description with its source, contact channels and the roles to contact.
How Secwyn verifies these companies
- Every company description is a sentence visible on the company's own website. Inside the product, each one links to its source page.
- Each company has a NAICS industry code, the US government standard for classifying businesses.
- All companies are based in the United States. Location and size come from public sources, including company filings and People Data Labs.
Data updated October 6, 2026.